core

#### Alignment Backfilling for QuickAlign

"Backfilling" means QuickAlign looks back in the measurement routine and creates partial alignments as required in order to accurately handle probe compensation of any non-3D feature.

Back-filling occurs if these conditions are met:

- The measurement routine is in startup mode and therefore doesn't have a user-defined alignment.

- One or more selected features for the QuickAlign operation is a 2D feature, such as a line, circle, or point.

- A feature before the selected 2D feature exists that controls two degrees of rotation (LEVEL).

An Example

1. Measurement Routine before QuickAlign

2. Measurement Routine after QuickAlign

3. Back-filled alignment after PLN1

4. Back-filled alignment after LIN2

5. Final, fully constrained alignment